There are many factors affecting the sealing performance of pneumatic ball valve, such as the coaxiality between the pneumatic ball valve, upper valve stem and lower valve stem. The roundness and smoothness of the ball, the roundness of the 90 degree conical surface of the valve seat, the preload of the O-ring of the valve seat, the preload of the compression spring, etc. Therefore, how to solve these problems has become the key to the sealing of pneumatic ball valves.

Know that our new pipeline gas users must use stainless steel metal bellows since September
It is learned from Jiaxing Gas Group Co., Ltd. that since September 1 this year, the newly installed gas meters will be different from the previous ones. The copying behind the meters will unify the anti falling threaded joints, which means that the most common rubber hose will not be used, and the citizens will have to purchase the matching stainless steel metal bellows. "According to the statistics of pipeline gas household safety inspection in 2012, there are 150000 pipeline gas users in the urban area. Of the more than 60000 safety hazards detected, the rubber hose problem accounts for more than half." Zhang Pin, Secretary General of Jiaxing City Gas Association, said that there are many safety hazards in rubber hoses, and suggested that users replace rubber hoses with safer metal bellows. Green transformation of stainless steel pneumatic butterfly valve enterprises is indispensable
The haze in winter has deeply "stabbed" everyone's lungs. Foreigners in Beijing have repeatedly chosen to "flee". China's rapid economic growth has not only brought us rich material life, but also "rich" air, which is an alarm bell for every industry, as is the stainless steel pneumatic butterfly valve industry.
Nowadays, the voice of developing green industry is getting higher and higher, so why should we develop green industry? As long as this is cleared up, it can arouse the desire of China's stainless steel pneumatic butterfly valve industry to develop green stainless steel pneumatic butterfly valves, rather than passively promoting the stainless steel pneumatic butterfly valve industry to green stainless steel pneumatic butterfly valves through national coercive measures.
The increasingly serious environmental problems remind us that the earth, our home for survival, was once overloaded. Blue sky, white clouds, green mountains and green water have gradually become the extravagant hope of mankind. In order to maintain our common consumption environment, as a highly polluting industry, whether the current deteriorating ecological environment should arouse the deep thinking of the stainless steel pneumatic butterfly valve industry. Our living environment is declining. If the pollution continues at this rate, will our descendants still have room to live? The smog weather in Beijing all the year round is a yellow card warning of China's rapid economic development but neglect of environmental protection and natural environment. At the same time, China's energy consumption per 10000 yuan of GDP is far higher than that of a prosperous country, and its dependence on foreign energy is increasingly high, which also deserves our serious consideration.
With regard to the concern about the deterioration of the living environment of contemporary people and the confession of future generations, ask yourself: should the stainless steel pneumatic butterfly valve industry not reduce energy consumption; Should not reduce emissions; Shouldn't we take the green road; Is it not the obligation of the contemporary stainless steel pneumatic butterfly valve industry to develop green industry? It is imperative to carry out green industry, which is beneficial to the present and the future. It is imperative to carry out green development of stainless steel pneumatic butterfly valve industry.